Water filtration and supply system.



A L. E. SMITH.

WATER FILTRATION AND SUPPLY SYSTEM.

APPLIOATION FILED JAN. 15, 1912.

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COLUMBIA PLANQGRAPH C0.. WASHINGTON. D. C.

Patented May 14,1912.

L.v E. SMITH.

:WATER FILTRATION AND SUPPLY SYSTEM.

APPLICATION FIL ED JAN. 15, 1912.

. Patented May 14, 1912.

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LLOYD E. SMITH, 0F CHARLESTON, WEST VIRGINIA.

WATER FILTRATION AND SUPPLY SYSTEM.

Specification of Letters Patent. Application led January 15, 1912.

Patented May 11, 1912. Serial No. 671,177. l

To all whom t may concern Be it known that I, citizen of the UnitedStates, residing at Charleston, in the county of Kanawha, State of WestVirginia, have invented an Improvement in Vater Filtration and SupplySystems, of which the following is a specilication.

I have obtained Letters-Patent of the United States, N o. 699,032, foran improved system of economic water filtration and supply for towns andcities, in which perforated intake pipes are located in the bed of ariver or other stream and buried in sand forming a natural deposit andfiltering medium. From such primary intake pipes, delivery pipes arecarried up and extended to a pumping station whence the water receivedat the latter in a pure or iltered condition is forced through mains andservice pipes to the several points of delivery in a town or city. Inmany cases, however, water in the bed of a river or other stream ishard, owing to the presence of lime or iron, it being received fromsprings or other supply sources communicating with the bed of thestream. It is, therefore, inexpedient and impracticable to locate andutilize my system of water filtration and supply where such conditionsexist. I have in consequence devised a plan and means whereby hard orotherwise objectionable water flowing or rising from a spring in the bedof a stream may be prevented from access to the intake pipe, or minglingwith soft water taken from an overlying stratum. In addition to thisfeature of my invention, I have devised improvements in intake pipe andthe connection of its laterals or branches therewith, as hereinafterdescribed.

In the accompanying drawings Figure l is in part a diagrammatic view andin part a vertical section showing my improved apparatus arranged as inuse. Fig. 2 is a r vertical cross section on the line 2 2 of Fig. 1.Fig. 3 is a plan view of the delivery pipe with branches and perforatedlaterals arranged according to my invention. Figs. 4 and 5 are detailsections to be hereinafter referred to.

A indicates a water delivery pipe extending from the pumping station X,located in the river bank, to a sand-bar, located in the bed of theriver. The said delivery pipe is provided with branches B, preferablyarranged at right angles thereto and in a hori- LLoYD E. SMITH, a i

l delivery pipe or j series of zontal plane, and provided, as shown inFigs. 2 and 3, with valves having handwheels 7), by which the valves maybe opened or closed, as required to admit water to the main A, or cut itoft therefrom, as conditions may require. The said branches B are inturn provided with a lateral intakes C consisting of strainer pipeswhich are attached to the branches by peculiar joints, hereinafterdescribed, which permit their adjustment at various angles.

As shown in Figs. 3 and 5, the several intakes C are provided with aseries of lengthwise rows of openings forming mere slits in the outerside of the pipe but enlarged on the inner side, this being what isknown as Cooks strainer but I propose using any other form of stra'nerthat may be available under the conditions found to exist. By thisconstruction, the entrance of sand is effectively prevented, while waterfinding entrance through the slits or other openings flows freely, bypercolation, into the pipe, as will be readily understood.

In Figs. l and 2, the river end or terminal of the main or delivery pipeA is arranged horizontally in the sand-bed Y. As before intimated, waterfrom springs located in the bed of the river is in many cases hard, andin order to cut oft' the upward flow of such water and prevent itsaccess to the intake pipe, I employ a guard or shield D, which is in thenature of a large tray constructed of hydraulic cement and its sidewalls preferably extended outward or flared, as shown. The size ordiameter of this shield will depend upon conditions, but it is effectivefor cutting olf access of hard water flowing upward from springs belowand permeating the lower stratum of the sand underlying the shield, sothat softer water flowing in the main current above the sand-bed andpermeating the sand stratum above the shield, nds access to the deliverypipe and its connections.

The form of universal joint which I employ for connecting the intake orstrainer pipes C with the branches B is constructed as follows: Saidbranches B are provided with screw-threaded nipples 6', see Fig. 4, andto each of these an internally threaded elbow or union c is applied. Asimilar union c is applied to the intake or strainer pipe C, and athreaded tube c2 connects the two unions. It is apparent that by thisconintake pipe, of

struction, the intake pipe C may be adjusted at any angle, horizontal,vertical, Or Oblique, as illustrated in Figs. 1 and 3. The form Otuniversal joint described is, moreover, very simple in construction andmay be economically manufactured, and it permits the pipes C to beeasily and quickly attached to, Or detached from, the pipes B.

lVhat l claim is:

1. ln a system of Water filtration and supply as described, thecombination with an a shield arranged horizontally beneath the same, thetwo being connected and adapted to be buried in a sandbed in abody ofWater constituting a source 15 of supply, as described.

2. In a system of Water filtration and supply as described, thecombination with an intake pipe and its connections, of a shieldconstructed in the form of a tray having a closed bottoni and sides andopen top, and arranged horizontally and buried in a sandbed, the pipesbeing arranged directly over the shield, as described.

LLOYD E.v SMTH. wWitnesses:

JOHN BELDEN NICHOLS, J AsrnR NEWTON HUDSON.

Copies of this patent may be Obtained for ve cents each, by addressingthe Commissioner of Patents.

Washington, D. C"

